Osmium dye boosts long wavelength solar hydrogen output

Tokyo, Japan (SPX) Jan 09, 2026
Generating hydrogen from sunlight offers a route to low carbon fuel production by converting solar energy into chemical energy stored in hydrogen. Researchers use photocatalysts to absorb light and drive water splitting into hydrogen and oxygen, but many existing systems only harvest part of the visible spectrum, leaving much of the incoming solar energy unused. To increase solar-to-hydrogen eff